Growth and Development of Male External Genitalia a Cross-Sectional Study of 6200 Males Aged 0 to 19 Years
ARTICLE Growth and Development of Male External Genitalia A Cross-sectional Study of 6200 Males Aged 0 to 19 Years Analia Tomova, MD, PhD; Fnu Deepinder, MD; Ralitsa Robeva, MD; Hristina Lalabonova, MD, PhD; Philip Kumanov, MD, PhD; Ashok Agarwal, PhD, HCLD Objective: To provide estimates of normal variations and penile circumference (measuring tape) from birth in penile measurements and testicular volumes, and to to 19 years of age. establish reference ranges for clinical use. Results: Testes did not show any increase in size until the onset of puberty at age 11 years, whereas penile growth Design: Cross-sectional, population-based study. was gradual after birth. However, both penile and testicu- lar development demonstrated peak growth from 12 to 16 Setting: Schools, kindergartens, and child care centers in different parts of Bulgaria. years of age, which coincided with the maximal male pu- bertal growth spurt. Data indicate an earlier pubertal de- Participants: A population of 6200 clinically healthy velopment for this study population than that for a simi- white males aged 0 to 19 years. lar population several decades ago. Significant differences betweenurbanandruralpopulationsregardingpenilelength Interventions: The study physician chose schools, were also noticed. kindergartens, and child care centers randomly and Conclusions: Our study provides the contemporary ref- examined children at random until he reached the erence range values for height, weight, testicular volume, required number. Each of the 20 age groups (age and penile length and circumference of males aged 0 to range, 0-19 years) had an equal number of males (ie, 19 years. Our data show that, even by the end of 20th cen- 310).
[Show full text]